Circuit-control system



Aug.,6,19'29. AiPASCHER Y 1,723,884

CIRCUIT CONTROL SY"TEM Filed March 1'7, 1925 H'Ls Attorfneg.

` circuit control systems and more particular- .ly to circuit control systems for a plurality" *Patented Aug belleza p- A O I'TFICIEi.V

ADALBERTPASCHEEOF NEUFINKENKRIQGERMANY, Assiefivonf'ioGnivnmirL t, annemarie coMPANY, [aeonronaroivornnw Yoan. i

i i i ernennt-eoiv'rnonfsvsrniu@l 1 appiieationunidnarchu;ieaaseiiaino. 95.461. and in Germany Apru 1e, 1925@ My invention relates tofimprovementsnin of, electric conductors arranged to `be controlled by a plurality ofrsvvitches which are arranged i mined sequence;` r i y In German ALetters Patent, Nol `400,6!:11of `August 21, 1924, ythere isi` described a" sys-` tem of connections; for alplurality of distrib- -ution `transformers interconnecting. a supply .lvcircuitand a dlstribution circuit.; transformer referred to as thei Aleading trans- 3. former is" arranged `to "ibefconnected to `the system manually" orautoinatically in accordr ance Withl an `electrical conditionot the `system. V Other transformers are larranged,tor'be l V``connectedl `and disconnected automatically to and from the system in i sequence `depending `upon :tlieload demand` on the distributihunV isystem-l `The closing -coil of aswitchvior "a transformer isnconnfected `in series `Witlr` a c `contact of a relaygwhichiscontrolledby the currentV of the transformer preceding in the `sequence oi'c1os ing,` and the tripping coil ,of

a switch forai transformer is connected in series with contactsiof"relays Whichare con trolled by the current ofv the corresponding y transformer, the "current of the preceding `tr`ansiormei`-, or tlieftotal"` current of the sys- `tem. `lherespective relays are adjustedto operate onidiierent values ofcurrent in e: Ul A such a manner that on a decreasingload `de-I i mand the transformersare disconnectedin t reverse sequence from the sequence ofclosingj By'lneans of a fs'equence switch, any desired ,transformer may be used as theyleadf ing transformer'. NVlierelfthere are N translormersand any one particulartransformer is chosen as the leadingftransformer, (N-1) i releasingrelays are required forl'each trans- -iiormerunit r 4;: i i

An object ofmyinvention is `to provide an improved arrangement otapparatus and" circuits for `accomplishing `the Aresults obi,

a tained initheqaboveLmentioned patent with single releasing `relay for `eachicircuit,`

`andingcneralftdprovide an improved ari Se rangement of n apparatus and circuitsj for switching "means unl` any system comprising plurality of; conductors Whose Vcircuits 1t to open ,andiclose' in fapredeteri ed claimsif 1 i is `desired to `,operi and closetin "a predeter-` i mined sequence andin which any one circuit la desidera with` @predetermined er# :quence inaining circuits n My invention Will be from the `following description taken inu connection with the accompanying drawing and its scope will be pointed outfin the append'- In thel single figure of the 'accompanying ly an embodiment `of my invention in `a circuit control" system'comprising a plurality `of electric conductors 1, 2 and 3, each i ci of` closing and opening for the re.

better understood drawing', I liave illustrated diagrammatical-A Whiclimay be arrangedcto be controlled suitable f electric Aswitches on circuit `interrupting means suchjas circuit breakers 4,

5 and 6, "arranged sothat the closingiof one circuit breaker Willbe. `followed in a predeterininedsequence by the remaining circuit i breakers. The conductorsff2 and 3 may high orlloW tension side of distribution represenayfor example, the circuits :on the transformers, the circuits `for automatic subt `stations interconnected Witli a supply circuit` and a distribution circuit, or the circuits for connecting and disconnecting a pluralityofgeneiators to'and from a distribution i circuit. 1 Itis, lioweventobe understood that `my inventionbis not limited to any partic` fular application, but may be used to` ad! vantage in anysystern comprising a `plural#` ity of `conductors Whose circuits it isdesired tocontrol in apredeterrnined sequence of closing andopening.

'The circuit breakers previded `with any cf the Well-known `fault responsive `means for l controlling the circuitsgunder `abnormal conditions such as over current, undervoltage,` etc.; since in accordance with invention the circuitbreakers "are freegtorany fault responsive control devjsired. For controlling and actuating the `circuit breakers 4,5 and 6 electrically, they maygbe provided With? any suitablecontrol; i

`rneans,*such as `openingfcoilsf, 8 and 9 respectively,1 arranged to eiii'ect the release of latcliing members 10, 11and 12 respectivey 11y,and also with suitable" actuating or closingmeans suclias closingco-ils'l, 14 and .lrespectively The opening coils 7, 8`and 191,4 and the closing coils 13, lland 15 may be `energized `from anysuitable source of curnectedtheretoin accordancewith the polarirentxsuch as theusual'controlbus, and con- Y vided relays 16, Y17 1 and `18 combining the" For the automatic connection and disconV neotion ofV each conductor, Vthereare profunctions' of maximumv and ininirnunr relays which areenergized by a".currentvproporf' tionalgtoV thecurrent flowing in the` conduc-v tor, with which each relayis associated` Relay 16 eoinprises airoperating coilV 19 eonnectedin series relation with conductor l and having in operativerelationwithlit a -core 20 connected to a-.lever 21a1 'ran`ged to `workbetween `fixed contacts 22 and y23. ,Con`-` tact lever 21 is connected to the positive side of `the control bus, `Contact 22 is the inin 'n imma-contact point of relay ',lrand is connected in the openingfooil circuitiof circuit breaker' at. Contact 23 is the maximum-contact point andis connected inthe closing coil circuit of circuit breaker 5.`lr In a simi! 17 comprises an operating n 0011,24 connect'euffin series relation with Vconlar` manner, relay ductor 2 and isf'provided with `a plunger` 25 5 and a contaotlever26: cooperating with fixed contacts 2'? and 28, while relay l8'cornprises an ,operating coil29 connected-1n seriesre lation With conductorland is'provided'vith Y a plunger 30 `havingContact lever cooper ating withlixed contacts 32and 38;

1 .Cireuitbreakersfq `5 and 6 are provided Y the closed, and auxiliary contacts 35, 37 and Wluclrare arranged towbe 'closed when the respectively with auxiliary contacts 84, 36

and 38whioh are arranged tobeclosedvwhen Correspending` circuitry breakers V"are corresponding circuit breakers are open.f`

Conductors 1,2 and arefprovided resocotively with sequence switches 40,41 and 4t2, leach otwhieli has Ytwo different positions to enable any desired conductor `to be niade i the leading tcirouit. "In the position to the left,` as shown.withv respect" to 'switch 4D,V

conductor l niaybe connected asthe .leading cireuitwby means of a remote control switch Infthe position to 'tliel right', Whiehis u shownby the position ofswitches l1 and'42 associated witlrconductors2 and 3 respectively,the ,completion of theelosingcoil circuits'of circuit breakers and 6 cannot be eon'ipleted4 by. switch 43, abut ,the automatic switches are nrovedt'o the right-,"eitlier conductor2v orconduotor 3 Vmay `befniade the" leading circuit.V Switch'ZlO is providedwith i contacts Ltl, 45,146and 47, whileswitches 4l and l2 `are provided with contaets48, 49,750- .andf 51, fand 52,513,154 and 55 respectively.`

lt jwiil, of Ico'urse, "'be understood "that switches 40,1 4l, and 42 may v be construct-ed `any desirablemanner, andmay. take the of a drurn controller' or anyotherpconvenlent forni;` Inanyf event,=the particular lay 418 is arranged connectiongand di sc'on'neetion ot' the "reinaini ingfconductors is made 4possible will be described in Amore detail hereinafter.. InE `similar manner, ifswiteh 4lv for 42 :isinoved ,"to the-left `and the fremaining sequenceV typev chosen inustpbe constructed so that vin theqpartieular `case`iilueti-ated :for switch 40,` contacts 46 andH 47 are open whencontaets 4A and are closed.

1 Il it is "desired to close, circuit` a `nc l"tliusA niake itvpossible for conductor l Vto be the leading'circuit,*switch40 ismoved Y n, `to the-position shown in thedrawlng,soasp to close4 contacts 44 and 45.51' It isassuined l I thatfswitchesll and 42 ,willjbe` in the position shown and. that circuit `,breakers 4, 5 and Gare inftlie openposition, closing respectivelyV auxiliary contacts "35, 37 and V39.

Circuit ll may connected moving `switch l--S'to the right. `Anfenergizing eircuitforclosing coil 1,3 is thereby completed f Yfrom the positive side loi2 the Ycontrol circuit `Y through Contact 43, Vcontacts? 44e of switch 40, Voperating coil 13 ofV circuit breakerV 4,

tov the negativejside ofthe* control circuit. j

Circuit breaker #i now'iinoves rto its circuit closing position, closes auxiliary contacts V3A, andopens its auxiliary contacts 35".`

the load' cariiedby conductor-1 exceeds a predeteriiiined\amount, 'relay 16 moves con-,7. tact `lever 2l -to` engagecontact 28. An en# ergiz'ing' circuitA for -theivclosng oeill` of circuit vbreaker 5 is completed from the posi-` tive side ofthe control-bus, through cont-act'` `I23, contact o-,-elosing coil 14, to the nega- Circuit breaker 55 rinovesto itseircuitclosing posi- Y tion, and Vat the saine time lelosesits'auiiliary contacts Bti, and@` opensv its-'auxiliary tive sideof i theV control busAV contacts 37 If thefiload carried by conduct and `thereby :complete van energizing circuit for closing coil 115; ojl circuit breaker' @,irro'nji breaker 6 I opensits auxiliary contacts39;VN Y

*If theloadcarried bythe conductor' ',100 `tor 2` continues"touincrease,bperatingffcoil 2li oi relay; 17 is arranged to move contact,

lever/261Mo engagement With contact 28 105 `the positive sideof the control bus, through -contacty 28, Contact lall, closingK coil 15, to the negativeFelde ofthe Control bus.Y `Circuit 'new closed, and at {the same 'time feloses its auxiliary `*contacts fand 11o decreases below "1"predetermined value, re-

plete an energizing circuit for openingl coil to move contact-j lever 3l" intozengageuient withcontaet 32 andcom-- 9, frein the' positive side ofk the control :bus-i throughrcontaet 32, Contact `contact 4,5,

operating coil `9,"cont`aetsl38, tolthejother side of the `controlbus. `Upon thev energizarelay 17 is arrangedto inove Contact" lever n t 2G'ginto engagement VContact 27 (and complete t an energizing circuit for opening i man 1coil Siof'circuit` breakerfyfronr the positive side of thecontr'olbus,I throughlcontct 27,

contacts 391, coill'jcontacts36,10 the nega-` "tivezside ofthe 'controlnbus Upon `the-enr- 7 ergiaation of .opening coil 8, `latching mein# iber llis arrangedftoi` release circuit breaker Whichmovesftofits openpositiom i If it is desiredito disconnect conductor l, switch t3-is moved tothefleftand com- Lpletes an i energizing 2' circuit i for opening coil 7 of circuit `breallerf4 from the positive r' side ofthe controlxbnsthrough coil" 7 ,con-

tactsttofthe negative` side of thel control bus.` VUponthe energization of` .7, "latching :member l0 is Verrang circuit breakert which,"movesV to its open iliary contactsfea t i i t i i t i t l It will ,be observed thatzcircu'it breaker 5 can be released only vwhen circuit breaker position andat the same timeelosesits aux- `6 is `in the `open. position, in view of the.` interlocking feature i provided by contacts `39 u ofci-rcuit breaker 6.x In like manner, unless conduct-or lis "the leazding` circuit, circuit breaker 4 can be released only when circuit breaker 5" `luasmoved `to @the open"` position,

`in view of the interlockngfeatme provided `by contacts 37 of circuit` breaker-;5. It will also' be observed thatuvvhen,conductorfl is i the leadingcircuit, circuit breaker 4` cannot be opened `by thelopefation ofrelay- 16 since contact 47 ,l in the circuit ofthe opening coil u 7 ,is not fengagedfby sequence switch 40.5n

, r It itis desiredffcto make-conductor 2Wthe fundamental load circuit, its sequence switch u 41 Willbe moved to the left, se pence switch of conductor liwillbeinv to therightp` `and sequence svvitch'v`42 will" beleftlin ,the

position, previously takem "that is, to the right. Switch is moved to the right ,and

` completes an renergizing; circuit-,for `closing positive side of the control bus, through(` con' .tact ,48, `operating,coil [144,jto the negative cuit of-its opening coil '8i If `the load carried -by conductor 172 exceeds, "a" predetermined puvaliie, relay` 17 'rearranged toclose contacts 28 so Vas to i complete? a circuit, for `i closing "coil-i" 1 5 of circuit lhreaker` 6. f; Circuit breaker i f 6` now'f" inoves i ,t9 its l circuit closinglfgposition and a't they Sametime closesitsauxiliarv 9i `Iftheload carriedbyconductorwcon p gtinues to increase,` reikt? `side, of thecontrolbus.` Circuit breaker 5 moved to eircuitlclosing pesitiomwhere it closes A Sits` auxiliary @contacts 36 in- 4the cir contactsV 318 in the circuit? of, its opening coil close its contacts 1,33; a

Seite` time closes i to @leaseV now, moves" `Lto its a its `auxiliary contacts 34in thecircuit of its` opening coil 7. u

. u VWith adeereasingload relay-i6 A :is arrangedto close' `Contact 22,2 which comfpletes i anA energizing circuit for 1 opening `coil `7 i of circuit: breaker 4- from` the?l positive side `ofthe controlli bus through contact 22, coni tact 47, `Contact `19,vcoil1 7',r contacts 34, to

"thegfriegative sidevloflthe controlbus;` With `a `continued decreasing loads,- i relay `18 is arranged to close contacts 32tc'rcomplete an energizing circuit' lfory` opening coill 9v of` cir cuit breaker 6 froin the positive sident-the control bus through Contact *32;y Contact 55,`

tive side of the` control-bus. i i

Conductor' mayl be -made `the undamelr Vtall. circuit -by :moving sequence c switch `42 `tortheleftso as tdclose1 contacts 52 and 53. `Switches '440 and Here thennroved to the rghtso as toclose contacts 46 and 47, and

50fan'd* 51 respectively.' y Under these condiyt-ijons`,;tl1`e sequence 'of operations for conn'ecting'l and disconnecting the circuitbreakfrom 1 the description r given liereinbefore:

While, I have shown and; described but one embodiment of rny inventiongit will be obvious topt'liose skilled inthe" art "that varidus changesiandyrnodicatins may be made ,without departing from nyinvention, and

r `I, therefore, aim i the appended claims to' cover' all?V suclr` changes and 'modifications' as `-`invention.V r 4, u ,i ,i i i `v AwVVlatV Ifclaimfas new `and desire to secure by Letters rPatent of the United: States is i Aixcircuit control L system cimiprisingA a plurality of, i switches; means aorr changing contacts 35', coili9,lfcontactsi38 to the negaf-erswin `tlreyorrden 6,94 and 5,4 Will` be obvious the sequence `of operation otsaid switches,- a.

phenclit-y('` of control 'devices arranged one Afori;earch@ switch for; controlling the 4 succesforeach switch', and a plurality of `auxiliary switchesarranged one orfeach `switch and each i in operative relation with a switch suce` .ceeding in their" sequence of closingiand cooperating `with` la control J device ,associated with a switch preeedingfinthe sequence of closing forcontrolling the opening circuitof thesaid preceding switch@ I i i pluralitV Iof` switches, selective switching closedl initially inwclosing said switcheslin mined s eqiuence, a plurality ofopening `circultsI `arranged 'one for :each switch, and; an auxlh'ary switch 1n the `openingcircuit l of` a sive closingriandi opening of said switches, r up `pluralityof openlng{circuits-'arranged `one `2.A circuit control; system )comprisingfa` 4coiitrrrilled by aswitch succeeding in4 the-:se-

V ing switch has been opened. l

ACit

q circuiticoiitrolfsystem comprising plurality of;V switches," selective switching meansAh `for predetermining the initial f switch in the sequence of closing, a plurality; ofrcontrol devices cooperating. wi th said selective switching meansf .for 5 controlling `the 1 successive closingand openingof said Switches, i 'a plurality of opening circuits arranged one for Aeach-J-switch;V an auxiliary 4switch-iii an opening circuitof la switch preceding in. the Y sequence yof closingwcontrolled' by awswitch succeeding in the sequenceof closing for deterinining the-order offiopen-ingv of said 49A circuit switches,r4 and f contacts ron" said*selectiveV switching means arranged-to provide acir-y cuit around an auxiliary switch of the initial Aswitch inthe sequence `of closing*whereby thellast succeeding 'switch v.may `be .opened lirrespectivelyfof'the selection of the initial switch. f Y

vd'uctors and` adapted: to be operated: to con` trol the circuits thereof, switching meanslfor selecting the Order of 'closing fof saidigs'witch# es, afpluralityof relays; arranged `o1 ie""for y eachs Iconductor and connectedJ to respon-` sive; to :.:anr l electrical characteristic off; the

` load 1 carried by the conductoriwith which`V` it is associated for controlling thesuccessive` closingof said switches when saidfsel'ective switching means is riii. aiprecletermined.posi-1 tion, and means in:operative'relationyvith a switch succeedingrin thesequence of closing cooperatingnwith airelay loi'taiswitch pre- Q ceding in the sequenceofclosing""for effecting the successive i opening of said switches .in :thegreverse sequence from closing.-

4 i A i 5., A" rcircuit: control 1- system comprising 4a `plurality :l of electric i conductors; a plural` K ity ofswitches arranged one ineacli fofsaid conductors, electroinagneticV mechanismY in operative Y relation with ',eacli switchi having.v

closing and` opening.v windingsadaptedflwhen lenergizedw to? closefifandopenthe`= same, a :switching means for selectingfftheicircuitto i be Y closed initially in the vsequence l ot fclosing,` aplurality Vot.;relaysjfarrange'cl one'ffor cach 'conductor and adapted to kcontrol the.

enei'gization of: the closing? of i the j switch succeeding I in @thej sequence: loi?l clos l l ingfiand j the y opening winding of the; switch i in; the` conductorA with which-A' it V.is associ- 6b ated7 and means in operativerelationwith aswitch succeeding inthe sequenceof cljosing "cooperating withfa relay of a switch:

preceding inthe sequence of closing for efectingythe' successive `opening `ofhsaiol 'switchesfin' therreverse sequence from c1os ingf' quence of closing whereby said preceding Yswitch `cannotbe opened until-said succeed` control system" comprising f a plurality i of electric conductors, f a plural-ity y rif-*switches .arranged'on'e iii'each of-stiidcon plurality. of electric conductors, 'a plural` ity ofsswitclies arranged one in ,each of said conductors, anielectromagnetic mechanism in operative;relationlwith':each switch hav-` ingaclosing and opening windings ladapted when energized to open and close the saine7 selective switchingv means` .forpermitting Y -any desired circuit to be closed irst, a pluralityoi relays one for: each conductor and connected l toV 4be responsive "to `the current of! its, respective conductor for Veffecting the order O'topeningof saidsswitches.` Y

7.A'scircuit `control' system comprising a vplurality of 1 electric "conductors, a {plural- -i-ity of switches arrangedjone in' eachv of said L '-conductors'andV adapted tol bex` operated to `control the' Acircuits thereof,V ay plurality of selective' switcliingmeans arranged one with .eachi'switch:for permitting any desired switch to `be vclosed 5 first,4 Vmeans comprising 'a closing 'coil arranged one witheach of said switches for; eife'cting *thefclosing of said` sviitches.rv when *said* `selective switching meansjifare n a predetermined position, "means comprisingfan opening coil arranged one withfeachof said switchesforeffecting the openingthereof, and an interlockingcir-` Acuzit coiit'i'iolled'rhyV a switch succeeding in the @61 AV circuit control, system coniprisingv a` sequence ofclosiiigfor controlling the open- Y sequence of'closing. Y Y K A circuit control systemV comprising a ing -coilfcirciiit yof aswitch preceding in i the plurality of `electric f conductors,i a plurality "of switches "arrangedfone` in each of Vsaid VVcoiiduct'orsfand adapted to be-operated' to controlthe 'circuits thereof, `anV electro' magnetic mechanism inoperative relation onejwithffeach of said -conductors and `cooperating Vwith said i selective' switching means for eiiecting the, completion of'ajcir-A cession ,l `and k auxiliary :contacts 'i in operative Y relation with; each" switch arranged V Ato be selectiveswitching means of the switch with which saidl relay is'jassociated for controlling `theV completion `ofjtlie opening coil cir- 4 enit of said precedingsjwitch. f

91A "circuit" L zoiitroljv system comprising a plurality Aoi. electric-conductors, a plurality with i each switch having' A,opening and Vclosi ing,V coils adaptedwhenlenergizedftoopen `andV closeA the f same, selective" switching Y nieans forV4 permitting-"any desired switch to" be closed rst,ra plurality of relays arranged cuitforeachof saidzclosing coils A,in suci i "closedwhen itscorrespondingswitch isopen v'fand'ycooperating 'with-a relay of a'switch a preceding in thesequence :of closing andthe i n of switches arrangedone` ineachofsaid netic mechanism" in operative relation with each `switch having opening and closing coils" adapted when energized to open and a close the same, selective* switching meansf i i for permitting any desired switch to closed first,` a pluralityof relays arrangedl `one `for each of `said vconductors i and provided Witlrmaximum and minimum contact A points, said relayyof a "switch precedingin the sequence of closing `Whenin the ,maximumfcontact position cooperating Iwith a selective switchmg means :of a switch `succeeding' in the sequence of closing for com-` pleting the closing coil circuit of said .suc-

ceeding switch7 and auxiliary contacts in operative relation with each switcharranged to be closed when its corresponding switch is opensand cooperating with a relay ofa switch preceding in the sequence of closing When in its minimum-contact position and the selective switching means of a switch With which `said relay is associated for controllingV the completion of the opening coil circuit of said preceding switch. v ,In; Witness whereof, I have hereunto set my hand this lst day of March, 1926. y 4

y i ADALBERT PASCHER.

fsf 

